Bunch builder



Oct. 15, 1929. v E. J. NOEL ..1,731,50

BUNCH BUILDER Filed Jan. l0, 1928 INVENTOR. ERNEST J NOEL A TTORNE Y.

Patented Get. '15, 1929 UNITED STATES ERNEST J. NOEL, OF WAUBEGAN,CO1\l'1 1'I EIC'JTICUTL BUNCH BUILDER Application. filed. January10,1928. serial Nb. 245,765.

My invention relates to a bunch builder device, for use in connectionwith spinning and twisting machines.

In the embodiment of the invention, the bunch builder device ispreferably in the nature of an attachment, and may be readily applied todiiferent types of spinning and twisting machines, without materiallyaltering the construction of the same.

The device embodies a traverse or builder cam, which moves the builderarm up and down, during the normal operation of the spinning or twistingmachine, and this builder arm is connected with the usual rocker shaftwhich operates the ringrail. Operating in connection with the maintraverse or builder cam is an auxiliary traverse 0r builder cam, havinga greater number of short cam faces, to engage with the roller of thebuilder arm. This auxiliary traverse or builder cam is normally idleduring the normal operation of the main traverse cam. When the ring railis lowered to doif the frame, the builder arm descends below itslowermost stroke, during the normal operation of the builder arm, andthis causes the forward end of the auxiliary cam to engage over thebuilder arm roller. When the spinning frame is again started, thebuilder arm is raised, and the builder arm roller ralses the auxiliarycam. Upon this operation, the auxiliary cam is automatically locked forrotation with the main cam oritsshaft. The auxiliary cam now passes overin engagement with the builder arm roller, and hence the builder armroller is given an increased number of up and down movements, with there sult that the yarn i wound in a bunch, when the spinning frame isfirst started after dofiing. When the auxiliary cam is passed fromengagement with the builder arm roller, it turns with the main cam,until itassumes an inverted position, at which time it is automaticallyunlocked from the main cam or main cam shaft, and hence remains idleduring the usual spinning prior to dofiing.

In the accompanying drawings, forming a part of this specification, andin which'like or twisting operation,

numerals are employed to designate like parts throughout the same, i V

Figure 1 is a sideelevation of a bunch builder device embodying myinvention, showing the builder arm in the raised position, uponstarting, up the machine,

Figure 2 is a transverse section, taken on line 22 of Figure 1,

' Figure 3 is a view similar .to Figure 1, with the auxiliary caminverted,and released from its locking connection with the main camshaft,

Figure 1 is a similar view, showing the auxiliary cam unlocked, and inthe lowered position, and the builder arm raised, and,

Figure 5 is a similar view with thebuilder arm lowered, after dofiing.

In the drawings, wherein for the purpose of illustration, is shown apreferred embodiment of my invention, the numeral 5 designates a builderarm pivoted at 5, to swing in a vertical plane, and which is suitablyconnected by means of a chain 6 or the like, with the usual rockershaft, not shown, which is employed to operate the ring rail. Thenumeral 7 designates a main traverse or builder cam, having cam faces 8,to engage with a roller 9, carried by the builder arm 5. When thespinning machine is operating, the builder arm 5 is in the elevatedposition, and the roller 9 is positioned in the path of travel of thecam faces 8 and the builder arm 5 is given an up and down swingingmovement, which causes the ring rail to move up and down, as is wellknown in spinning or twisting machines. The elements above described arethus wellknown in the ordinary spinning or twisting machine, and it is,therefore, thought to be unnecessary to give any further disclosure ofthe spinning or twisting machine. The builder device or attachmentineludes an arm'lO, arranged upon oneside of the main cam 7 This arm hasa longitudinal slot 11, which slidably receives the drive shaft 12 ofthe main cam 7. The arm 10 is provided at its outer end with anauxiliary cam 13, preferably formed integral therewith, and thisauxiliary cam is preferably provided with a relatively large number ofshort cam faces 14. The roller 9 is positioned to extend latch 18 ispivoted to the arm 10, at 19.7 This latch has a locking shoulder and astop 21. The main cam 7 may rotate in the direction of its arrow, butmay be rotated in the opposite direction, in which event the latch 18 isreversed and its pivot 19 inserted in an opening 21, formed upon the arm10.

In operation, the main cam? may be turned in the direction of its arrow,and the builder arm 5 will be in the raised operative position, asindicated in Figures 1 to 4:, inclusive. The forward end 13 of theauxiliary cam engages behind the roller 9 at about the point 9, Figure1, .and does not ride over the. roller 9. The arm 10 is now unlockedfrom the shaft 12, as the teeth 16 are out of engagement with the teethof thegear 17. Hence the main cam? may continue to rotate while theauxiliary cam 13,1emains idle. When the ring rail is lowered to doff theframe, the builder arm 5 moves downwardly below any elevation which itassumes during the normal operation of the spinning (or twistingmachine, as shown in Figure 5. The auxiliary. cam 13 will now gravitatetoward the roller 9, and the forward end 13 of the auxiliary cam 13 willnow engage over the roller 9. When the spinning frame is again started,the builder arm 5 rises to its normal elevation, and the roller 9 willnot engage beneath the auxiliary cam. When the builder arm 5 rises, asstated, it elevates the arm 10, andthe teeth 16 engage withthe teeth ofthe gear 17,:and about this time, latch 18 ziliary cam 13 has assumedthe inverted position, Figure'3, the latch 18' gravitates to the openposition, disengaging the shaft 12, and hence teeth 16 disengage theteeth of the gear 17, when the auxiliary cam 13 again assumes thelowered position. When the auxiliary c,a1n:1r3 again reaches the roller9, its forward. end 13 engages behind the same,

cam remains inactive until the frame is doifed.

It is to be understood that the form of my invention, herewith shown anddescribed, is to be taken as a preferred example of the same, and thatvarious changes in the shape, size and arrangement of parts may beresorted to without departing from the spirit of my invention, or thescope of the subjoined claims.

Havingthus described my invention, I claim 1. In a spinning or twistingmachine, a main cam, a pivoted builder arm having a part to engage withthe main cam, a reciprocatoryauxiliary cam arranged near the main cam.to engage with the part and movable generally radially of the main cam,said \aiuxilia'ry cam being free from connection with the builder arm,and means to lock the auxiliary cam against such radialmovement in onedirection and to cause the same to rotate. with the main cam. V

2. In a spinning or twisting machine, a

main cam, a movable builder arm, a reciprocatory auxiliary cam arrangednear the .main cam to operate the builder arm and movable bodilyradially of the main cam, and means to lock the auxlllary cam againstsuch radial movement and to cause the same =v to rotate with. the maincam.

8.111 a splnnlng or twlsting machine, a

=main cam, a movable builder arm arranged to be: operated by the mamcam, a one-p1ece erate the builder arm, and means to lock the auxiliarycam against radial movement and to cause the same to rotate with themain cam.

4c. In a spinning or twisting machine, a movable builder arm having anactuating ele ment, a main cam arranged to engage the actuating element,reciprocatory auxiliary cam arranged near the main cam and movableradially outwardly beyondthe diameter of the main cam to assume aposition behind the actuating element, .the auxiliary cam passing uponthe top of the actuating element when the builder arm is depressed whenthe machine is dotted, and means to lock the auxiliary cam againstradial movement and to cause the same to rotate with the main cam.

5. In a spinning or twisting machine, a main cam, a shaft carrying themain cam, a generally radial arm having an elongated slot to receive theshaft, a latch carried by the arm and adapted to engage the shaft tohold the arm against longitudinal movement, an auxiliary cam carriedby'the arm and arranged near the main cam, and a movable builder armhavlng a part to be engaged by the mam :cam :and: the auxiliary cam. atabout the, point 9", and hence the auxiliary 6. %In a spinning ortwisting machine, a

main cam, a shaft carrying the main cam, a generally radial arm havingan elongated slot receiving the shaft, a movable latch carried by thearm and engaging the shaft to lock the arm against adial movement, anauxiliary cam carried by the arm andarranged near the main cam, saidmain cam and auxilmain cam, a shaft carrying the main cam, a e toothedmember mounted upon the shaft, an

arm having a longitudinal slot receiving the shaft and provided with atoothed member to engage with the first named toothed member, a gravityoperated latch pivoted upon the arm and adapted to engage with the shaftto hold the arm against radial movement in one direction, an auxiliarycam carried by the arm,

and a builder arm having an upstanding part arranged in the path oftravel of the main cam and the auxiliary cam.

8. In a spinning or twisting machine, a

main cam, a movable builder arm having a 1 part to be actuated by themain cam, a reciprocatory auxiliary cam arranged near one side of themain cam and adapted to move generally radially with relation thereto,means actuated upon the inward movement of the reciprocatory auxiliarycam to lock the same with the main cam so that they rotate together, anda gravity operated latch to lock the auxiliary cam in the inner positionwhen shifted thereto, said latch automatically releasing the auxiliarycam, when said latch becomes inverted.

9. In a spinning or twisting machine, a main cam, a movable builder armhaving a part actuated by the main cam, a reciprocatory auxiliary camarranged near and upon one side of the main cam and movable generallyradially with relation thereto, an auxiliary cam being arranged toengage said part, means to lock the auxiliary cam and the main camtogether so that they rotate together when the auxiliary cam is shiftedinwardly, and separate means to lock the auxiliary cam against outwardradial movement during a part of its rotation after it has been shiftedto the inner position.

10. In a spinning or twisting machine, a main cam, having cam faces, amovable builder arm having a part to be engaged by said cam faces, areciprocatory auxiliary cam arranged near and upon one side of the maincam and movable radially with relation thereto, said auxiliary camhaving a plurality of relatively short cam faces which are adapted toactuate said part, meansto lock the reciprocatory auxiliary cam with themain cam so that they turn together when the auxiliary cam is shiftedinwardly, and means to lock the auxiliary cam against outward radialmovement after it has been shifted to the inner position.

In testimony whereof I affix my signature.

ERNEST J. NOEL.

